Combination hot-water heater and steam generator



March 3, 1931. GAGE 1,794,953

COMBINATION HOT WATER HEATER AND STEAM GENERATOR Filed May 20, 1929 oofiood 0 I. u v

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I [O W J 4001"). i424 11v VENTORI B Y 7 J7; ATTORNEY Patented Mar. 3, 1931 UNITED STATES PATENT OFFICE JOSEPH J. GAGE, OF DAYTON, OHIO, ASSIGNOR TO LESTER W. GOATE, OF DAYTON, OHIO COMBINATION HOT-WATER HEATER AND STEAM GENERATOR Application filed May 20,

This invention relates to new and useful improvements in combination hot water heaters and steam generators.

It is one of the principal objects of my invention to provide a combination hot water heater and steam generator which is so constructed as to permit a thorough and complete circulation of the water in contact with its heated surfaces so that only a minimum amount or" heat is wasted. The water, ad: mitted to the lower row of tubes, circulates completely through them before it enters the row above, this circulatory course through all thetubes of each row being enforced before the heated water or steam passes out of the last tube of the top row into the storage tank.

It is another object of my invention to provide a simple and compact combination hot water heater and steam generator having easily removable closure parts to permit convenient access to the tubes for the removal of sediment therefrom. If it is not possible to remove the scale, a boiler will soon burn out. Other important and incidental objects will be brought out in the'following specification and particularly set forth in the subjoined claims. In the accompanying drawings illustrating my invention, Figure 1 is a vertical sectional view taken through my combination hot water heater and steam generator. Fig-' ure 2 IS a top plan view of the header portion of the same. And Figure 3 is aside view,

with the cover removed, of one side of the header, showing the disposition of the tubes and partitions for directing the circulatory course of the water to be heated or converted into steam.

' Referring to the accompanying drawings for a detailed description of the form of embodiment of my invention disclosed the therein, the numeral 1 designates a base 7 port upon a flat surface.

which is preferably a hollow casting that flares outwardly at its bottom for a firm sup- A short distance below the top of the casting there extends I from wall to wall a support 2 for a burner 3.

Formed at the top marginal edge of the casting l is an inwardly turned flange 4,

1929, Serial No. 364,437.

which supports, and to which there is bolted, an external flange 5 on the bottom of a header casting 6. Fitted in holes in the sides 7, 7 of the latter are rows, one above the other, of horizontal tubes 8.

Provided at the marginal edgeof the top of the header casting 6 is a flange 9 similar to the flange 5. Against the flanges 5 and 9 on each side of the header casting 6, there is secured by studs 10 a side cover plate 11. These studs are received by tapped holes in ears 12 on the casting walls so that the cover plates 11 may be easily removed by a with drawal of the studs to affordflconvenient arccess to the tubes 8 so that they may be easily and thoroughly cleaned with a steelbrush.

Into the space between each cover plate 11 and its respective casting side 7 there project from the latter, vertical baffle partitions 13 and horizontal baffle partitions 1 1. As shown in the drawings, the vertical partitions 13 are alternately disposed between the ends of the tubes 8, so that when the water enters theheader casting through an inlet 15 communicating with the space opposite the bottom row of tubes'on one side, it will be compelled, by the vertical partition between the end of the firsttube and the end of the second tube, to enter the former and pass through it to the space on the other side of the header casting opposite the bottom row of tubes. Here the next vertical partition 13, as indicated by the dotted lines in Figure 3, will be between the second and third tubes so that the liquid will return to the first mentioned baiile space through the second tube.

' Directed from one tube to the other by these alternately disposed vertical baffle partitions 13, the water willtravel through all ,:z

turned upwardly at a right angle over thelast tube of the bottom row and in front of the last tube of the second row. The water is thus permitted to pass from the last tube of the bottomrow to the last tube of the second" row for passage through each tube of that row, as directed by the alternately disposed vertical baflie partitions 13, until it {reaches the front side of the header casting.

Here it is permitted to pass upwardly to the first tube in the third row by the second horizontal partition 14 which turns upwardly at aright angle above the first tube in the second row andbehind the first tube in the 1 third row. I I

, This 'zig zag course of the water through each row of tubes before it enters the one above, continues until it is discharged in a thoroughly heated condition, or as steam, into an outlet passage 16. This'thorough circulation of the water through therows of tubes and'bafiles in contact with the flames of the burner 3, makes it hot or converts it 2O that receives the bottom of the tank 19 a as a tight fit.

A vertical tube 21 comminicates at its lower end with the outlet passage 17 to conduct the hot water or steam to'the upper part of the storage tank 19 as shown :in Figure 1. From a point just abovethe bottom of this' tank a tube 22 projects down- 'wardly to conduct the cooler water or condensed steam to the inlet in the base 1 I for recirculation through the hot tubes'and side spaces ofthe' header casting 6. I i

The hot gases from the burner 3 pass upfi wardly throughholes in the storage tank base into gas passages 23 between the wall of said tank and that of'an outerhousing or shell 24 rwhich'surrounds the entire heater unitas shown in Figure 1.

COpposite each cover" plate 11 there;

first tube of the bottom row, a water outlet connection between the last tube of the top row and the upper partof the storage tank,

and battle means disposed in the space between the headers and the cover plates to direct the incoming water, first through all the tubes in one row, and then through all the tubes in the row above, until itihas passed through all the tubes into, and through, the, water outletinto the top portion of the storage tank.

2.. An apparatus of the type described, comprising a burner casting, a tier of horizontal rows of tubes above said burner, spaced headers for said tubes, cover plates secured to said headers beyond the ends of the tubes, to form water receivingspaces between said headers and plates, a storage tank mounted on said headers, a water inlet connection between the bottom of the storage tank and one end of thefirst tube of the bottom row, a water outlet connection between the last tube of the top row and the upper part of the storage tank, and horizontal and vertical baffle partitions disposed in the spacebetween the headers and the cover plates to direct the incoming water, first through all the tubes in one row, and then through all the tubes in the row above, until it has passed through all the tubes into, and through, the water outlet into the top portion of the stor age tank. I

In testimony whereof I have hereunto set my hand this 18th day of May, 1929.

I JOSEPH J. GAGE.

formed in the shell 24 an opening which-is I closed; a hinged door 25. VVhenit is de:

sired to clean the tubes 8, these doors are opened and the cover plates11 withdrawn by removing the studs 10. Com pleteaccessibili-ty is thus given to the tubes 8 for the purpose of easily removing all sediment 1 which basaccumulated within them This may be accomplished by th f; a Steel brush if desired. 7

Having described my -invention, I claim: Y Y

, 1. An apparatus of the type'described, com-' I prising a burner casing, a tier of horizontal rows of tubes above said casing-spaced headg c-Lers for said tubes, cover plates secured tp said headers beyond the ends of the tubes to ijorm Y water-receiving spaces. between said headers;

and plates, a storage tank mounted on said headers, a water inlet connection between the bottom of-the storage tank and oneendofthe 

